28040830806424 has 32 divisors (see below), whose sum is σ = 55861923855600. Its totient is φ = 13195685066880.

The previous prime is 28040830806413. The next prime is 28040830806433. The reversal of 28040830806424 is 42460803804082.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356677962 + ... + 356756569.

Almost surely, 2^{28040830806424} is an apocalyptic number.

It is an amenable number.

28040830806424 is a deficient number, since it is larger than the sum of its proper divisors (27821093049176).

28040830806424 is an equidigital number, since it uses as much as digits as its factorization.

28040830806424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713434588 (or 713434550 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 49.

The spelling of 28040830806424 in words is "twenty-eight trillion, forty billion, eight hundred thirty million, eight hundred six thousand, four hundred twenty-four".